Effect of shot peening on the wear behavior of Ti(C,N) coating on TA15 alloy prepared by double glow plasma carbonitriding

Abstract

Purpose The purpose of this paper is to prepare Ti(C,N) coatings on TA15 treated and not treated by shot peening using double glow plasma alloying technique. The effect of shot peening on the wear behavior of Ti(C,N) coatings is discussed. Design/methodology/approach The Ti(C,N) coatings were prepared by double glow plasma alloying technique on two different TA15 substrate; one is shot peened and the other is not. Findings Ti(C,N) coating on SP-treated TA15 was thicker and denser, and the grain size was smaller compared with that on original TA15. Compared with the Ti(C,N) coating on original TA15, the wear resistance of that on SP-treated TA15 is improved. Ti(C,N) coating on SP-treated TA15 showed higher nanohardness and bearing capacity than that on original TA15. Originality/value For double glow plasma alloying technique, surface quality, surface activity and other factors will have influence on the thickness and density of the coating. The wear mechanisms of Ti(C,N) coating on original TA15 are serious abrasive wear and oxidation wear. However, the wear mechanism of Ti(C,N) coating on SP-treated TA15 is slightly oxidation wear. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2020-0283/

Microstructure, mechanical and tribological properties of Ta(C, N) coatings deposited on TA15 substrates with different nitrogen partial pressure

“…EDS analysis of spots 1 and 2 indicated that the wear trace contains a large amount of Ti, Al, O and a small amount of C, but almost no N. The presence of O atoms in the wear scar region is because of oxidation caused by temperature rise. The reason for the low content of N and C atoms in the wear area is that EDS analysis of N and C elements with lighter atomic mass is only qualitative analysis (Xue et al , 2021). In the comprehensive results, it was found that the wear mechanism of carbide coating on TA15 substrates is abrasive wear and oxidation wear (Cui et al , 2017).…”

Fatigue Fracture Behavior of TA15 Alloy after Laser Marking

“…TA15 titanium alloy is a near-alpha type titanium alloy with high Al equivalent, which is strengthened by solid solution of α-stable element Al, and can be used in the production of thin sheets, forgings, profiles, etc. It is often used in the production of engine structural parts or key components, and is also one of the main materials of aircraft body structure, which has important application scenarios in the aviation field [2][3][4] . TA15 titanium alloy is prone to fatigue damage in complex service environment, and the main damage form is fatigue fracture [5] , which affects the safe service of aircraft.…”